TypeError: Cannot read property 'length' of undefined

What are you doing?

  try {
    await User.create({
      nickname: 'super',
      admin: UserAdmin.ADMIN,
      password: '123456'
    });
  } catch (error) {
    console.log(error);
  }
  db.close();

To Reproduce Steps to reproduce the behavior:

1. Define a model User .
2. Call the static method create
3. But see an error

TypeError: Cannot read property 'length' of undefined
    at User._initValues (/Users/pedro/projects/nodejs/cms/lin-cms-koa/node_modules/sequelize/lib/model.js:140:49)
    at new Model (/Users/pedro/projects/nodejs/cms/lin-cms-koa/node_modules/sequelize/lib/model.js:118:10)
    at new User (/Users/pedro/projects/nodejs/cms/lin-cms-koa/node_modules/lin-mizar/lin/core.js:181:1)
    at run (/Users/pedro/projects/nodejs/cms/lin-cms-koa/tests/helper/add_super.js:7:18)
    at Object.<anonymous> (/Users/pedro/projects/nodejs/cms/lin-cms-koa/tests/helper/add_super.js:24:1)
    at Module._compile (internal/modules/cjs/loader.js:701:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:712:10)
    at Module.load (internal/modules/cjs/loader.js:600:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:539:12)
    at Function.Module._load (internal/modules/cjs/loader.js:531:3)
    at Function.Module.runMain (internal/modules/cjs/loader.js:754:12)
    at startup (internal/bootstrap/node.js:283:19)
    at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)

What do you expect to happen?

create an user successful!

What is actually happening?

there was an error! and happened on this line:

     // set id to null if not passed as value, a newly created dao has no id
      // removing this breaks bulkCreate
      // do after default values since it might have UUID as a default value
      if (this.constructor.primaryKeyAttributes.length) {
        this.constructor.primaryKeyAttributes.forEach(primaryKeyAttribute => {
          if (!Object.prototype.hasOwnProperty.call(defaults, primaryKeyAttribute)) {
            defaults[primaryKeyAttribute] = null;
          }
        });
      }

when creating an user, the constructor.primaryKeyAttributes is undefined，so why this caused.

Output, either JSON or SQL

no sql and no json, just crashed on the sequelize , the core file is sequelize/lib/model.js

Environment

Dialect:

• mysql
• postgres
• sqlite
• mssql
• any Dialect library version: 1.6.5 Database version: 5.7.24 Sequelize version: 5.3.5 Node Version: v10.15.3 OS: mac 10.14.5 If TypeScript related: TypeScript version: XXX Tested with latest release:
• No
• Yes, specify that version:

[pedrogao]

solved!

[BobGneu]

@nolan-m Check your connection and that your models are registered.